Journal of the Korean Society for Marine Environment & Energy (한국해양환경ㆍ에너지학회지)

The Korean Society for Marine Environment and Energy (한국해양환경•에너지학회)
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Distributions of Water Temperature and Salinity in the Korea Southern Coastal Water During Cochlodinium polykrikoides Blooms

C. polykrikoides 적조 발생시의 한국 남해안의 수온 및 염분 분포

  • Lee, Moon-Ock (Faculty of Marine Technology, Chonnam National University) ;
  • Choi, Jae-Hoon (Dept. of Ocean Engineering, Graduate School, Chonnam National University)
  • 이문옥 (전남대학교 해양기술학부 조선해양공학) ;
  • 최재훈 (전남대학교 대학원 해양공학과)
  • Received : 2009.06.03
  • Accepted : 2009.11.24
  • Published : 2009.11.25
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Abstract

In order to elucidate the cause of Cochlodinium polykrikoides blooms in the Korea southern coastal water, we investigated observational data of water temperatures and salinities in summer and winter, obtained from the stoppage of ship by NFRDI (National Fisheries Research and Development Institute) as well as composite images by NOAA from 1995 to 2008. Cochlodinium polykrikoides blooms occurred when water temperature was approximately $25.0{\sim}26.0^{\circ}C$ and salinity was 31.00 psu on average in Narodo neighboring seas. Different thermohaline fronts were observed between the Korea southern coastal water and the open sea water in summer and winter, respectively. That is, in winter four fronts were observed between the Korea southern coastal water with low temperature and low salinity, intermediate water originated from Tsushima Warm Current, Tsushima Warm Current with high temperature and high salinity, and the China coastal water with low temperature and low salinity. In contrast, in summer two fronts were observed between the Korea southern coastal water with low temperature and high salinity, Tsushima Warm Current with high temperature and low salinity, and the China coastal water with high temperature and high salinity. These thermohaline fronts also proved to be formed by two water masses with a different physical property, in terms of T-S diagrams. Consequently, we noticed that C. polykrikoides blooms occurring in Narodo neighboring seas in summer had a close relationship with thermohaline fronts observed between the Korea southern coastal water and Tsushima Warm Current.

나로도를 중심으로 한 한국 남해안에서 발생하는 C. polykrikoides 적조의 원인 규명을 위해 1995년부터 2008년까지 국립수산과학원이 조사한 정선해양관측 및 위성정보 자료에 기초하여 동계 및 하계에 있어서의 수온염분 분포의 특징을 조사하였다. C. polykrikoides 적조는 나로도 주변 해역에서의 평균 수온이 약 $25.0{\sim}26.0^{\circ}C$, 염분이 약 31.00 psu 전후일 때 가장 많이 발생하였다. 한국남해 연안수와 외해수 사이에는 동계 및 하계에 각각 서로 다른 열염전선이 관측되었다. 즉, 동계에는 저온저염의 한국남해 연안수, 쓰시마 난류계의 중간수, 고온고염의 쓰시마 난류, 저온저염의 중국대륙 연안수 사이에 네 개의 전선이 관측되었다. 반면, 하계에는 저온고염의 한국남해 연안수, 고온저염의 쓰시마 난류, 고온고염의 중국대륙 연안수 사이에 두 개의 전선이 관측되었다. 이러한 열염전선은 서로 물리적 성질이 다른 수괴에 의해 형성된다는 사실이 T-S diagram을 통해서도 확인되었다. 이상으로부터, 나로도 주변해역에서 하계에 발생하는 C. polykrikoides 적조는 한국남해 연안수와 쓰시마 난류 사이에 형성되는 열염전선과 밀접한 연관을 가지고 있음을 알 수 있었다.

Keywords

References

  1. 서영상, 장이현, 김학균, 2003, "C. polykrikoides 적조의 시공간적 분포와 중규모 해양환 경 변동간의관계성", 한국지리정보학회지, Vol. 6, No. 3, 139-150.
  2. 양재삼, 최현용, 정해진, 정주영, 박종규, 2000, "전남 고흥해역의 유해성 적조의 발생연구: 1. 물리화학적인 특성", 한국해양학회지, Vol. 5, No. 1, 16-26.
  3. 이석우, 1983, 물리해양학 통론, 집문당, 235-245.
  4. 이문옥, 문진한, 2008, "Cochlodinium polykrikoides 적조의 최초발생해역인 나로도 주변해역의 해양환경", 한국해양환경공학회지, Vol. 11, No. 3, 113-123.
  5. 이영식, 박영태, 김영숙, 김귀영, 박종수, 고우진, 조영조, 박승윤, 2001, "Cochlodinium polykrikoides 적조 발생기작과 대책, 1. Cochlodinium polykrikoides 적조발생과 소멸의 환경특성", 한국해양학회지, Vol. 6, No. 4, 259-264.
  6. 조은섭, 최용규, 2005, "남서 해역의 유해성 적조생물 Cochlodinium polykrikoides Margalef 모니터링을 위한 환경특성과 식물플랑크톤 군집 동태", 한국환경과학회지, Vol. 14, No. 2, 177-184.
  7. 최현용, 2001, "한국 남해 나로도와 소리도 사이 해역의 1998년 하계 해황 및 적조소멸과의 관계", 한국해양학회지, Vol. 6, No. 2, 49-62.
  8. Choo, H.S., 2002, "The variations of oceanic conditions and the distributions of eggs and larvae of anchovy in the southern sea of Korea in summer", Journal of the Korean Fisheries Society, Vol. 35, No.1, 77-85.
  9. Anton, A., Teoh, P.L., Mohd-Shaleh, S.R. and Mohammad-Noor, N., 2008, "First occurrence of Cochlodinium blooms in Sabah, Malaysia", Harmful Algae, Vol. 7, 331-336. https://doi.org/10.1016/j.hal.2007.12.013
  10. Gobler, C.J., Berry, D.L., Anderson, O.R., Burson, A., Koch, F., Rodgers, B.S., Moore, L.K., Goleski, J.A., Allam, B., Bowser, P., Tang, Y. and Nuzzi, R., 2008, "Characterization, dynamics, and ecological impacts of harmful Cochlodinium polykrikoides blooms on eastern Long Island, NY, USA", Harmful Algae, Vol. 7, 293-307. https://doi.org/10.1016/j.hal.2007.12.006
  11. Guo, Z.G., Lin, T., Zhang, G., Zheng, M., Zhang, Z.Y., Hao, Y.C., Fang, M., 2007, "Sedimentary fluxes of polycyclic aromatic hydrocarbons in the Yangtze River Estuary coastal sea for the past century", Science of the Total Environment, Vol. 386, 33-41. https://doi.org/10.1016/j.scitotenv.2007.07.019
  12. Hu, K.L, Ding, P.X., Wang, Z.B. and Yang, S.L., 2009, "A 2D/ 3D hydrodynamic and sediment transport model for the Yangtze Estuary, China", Journal of Marine Systems, Vol. 77, 114-136. https://doi.org/10.1016/j.jmarsys.2008.11.014
  13. Hou, L.J, Liu, M., Yang, Y., Ou, D.N., Lin, X., Chen, H. and Xu, S.Y., 2009, "Phosphorus speciation and availability in intertidal sediments of the Yangtze Estuary, China", Applied Geochemistry, Vol. 24, 120-128. https://doi.org/10.1016/j.apgeochem.2008.11.008
  14. Kudela, R.M., Ryan J.P., Blakely, M.D., Lane, J.Q. and Peterson, T.D., 2008, "Linking the physiology and ecology of Cochlodinium to better understand harmful algal bloom events: A comparative approach", Harmful Algae, Vol. 7, 278-292. https://doi.org/10.1016/j.hal.2007.12.016
  15. Lee, C.I. and Cho, K.D., 2001, "Variation characteristics of water masses by advection of Tsushima Warm Current in southern part of the East Sea", 2001년 춘계수산관련학회공동학술대회 발표요지집, 242-243.
  16. Lee, M.O., Kim, B.K., Kwon, Y.A. and Kim, J.K., 2009, "Characteristics of the marine environment and algal blooms in Gamak Bay", Fisheries Science, Vol. 75, No. 2, 401-411. https://doi.org/10.1007/s12562-009-0056-6
  17. Lee, M.O. and Kim, J.K., 2008, "Characteristics of algal blooms in the southern coastal waters of Korea", Marine Environmental Research, Vol. 65, No. 2, 128-147. https://doi.org/10.1016/j.marenvres.2007.09.006
  18. Lee Y.S. and Lee, S.H., 2006, "Factors affecting outbreaks of Cochlodinium polykrikoides blooms in coastal areas of Korea", Marine Pollution Bulletin, Vol. 52, 626-634. https://doi.org/10.1016/j.marpolbul.2005.10.015
  19. Yang, Y.J., Kim, S.H. and Rho, H.K., 1998, "A study on the temperature fronts observed in the south-west sea of Korea and the northern area of the East China Sea", Journal of the Korean Fisheries Society, Vol. 31, No.5, 695-706.
  20. Yang, Y.J., Kim, S.H. and Rho, H.K. and Jeong, D.G., 1999, "Relationship between SST fronts and purse-seine fishing grounds in the south-west sea of Korea and northern area of the East China Sea", Journal of the Korean Fisheries Society, Vol. 32, No.5, 618-623.
  21. Zhou, M.J., Shen, Z.L. and Yu, R.C., 2008, "Responses of a coastal phytoplankton community to increased nutrient input from the Changjiang (Yangtze) River", Continental Shelf Research, Vol. 28, No. 12, 1483-1489. https://doi.org/10.1016/j.csr.2007.02.009